#E66E2F
Closest named color: Burnt Sienna (#E76F51). oklch(67.2% 0.166 45.2), rgb(230, 110, 47).
Aa
Black text reads best on this color (6.63:1).
About this color
#E66E2F is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.166 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.031 away. Black text reads best on it, at 6.63:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.166) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.63:1 |
| White text | 3.16:1 |
Values
| HEX | #E66E2F |
| RGB | rgb(230, 110, 47) |
| HSL | hsl(21, 79%, 54%) |
| OKLCH | oklch(67.2% 0.166 45.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #E66E2F | 3.16:1 | AA large text | Lc -63.5 | Content text, not long reading |
| Black text on #E66E2F | 6.63:1 | AA | Lc 45.9 | Large or bold text, headings |
| #E66E2F text on white | 3.16:1 | AA large text | Lc 58.1 | Large or bold text, headings |
| #E66E2F text on black | 6.63:1 | AA | Lc -43.6 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#FEF3EE
oklch(97.1% 0.014 46.2)
-
Step 100
100
#FCE4DA
oklch(93.6% 0.03 44)
-
Step 200
200
#FBCEBA
oklch(88.5% 0.058 45.3)
-
Step 300
300
#F9AB88
oklch(80.8% 0.104 45)
-
Step 400
400 (this color)
#E66E2F
oklch(67.2% 0.166 45.2)
-
Step 500
500
#DD5C00
oklch(63.1% 0.18 45.2)
-
Step 600
600
#BB4C00
oklch(55.6% 0.159 44.9)
-
Step 700
700
#9E3F00
oklch(49.1% 0.14 44.9)
-
Step 800
800
#823300
oklch(42.6% 0.121 45.2)
-
Step 900
900
#6E2A00
oklch(37.8% 0.108 45.3)
-
Step 950
950
#431700
oklch(27% 0.076 45.7)
#E66E2F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #908026 | 0.154 |
| Deuteranopia (no green cones) | #AD9B2C | 0.140 |
| Tritanopia (no blue cones) | #FC5361 | 0.089 |
| Achromatopsia (no color) | #919191 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66E2F
#E66E2F
oklch(67.2% 0.166 45.2)
- #00A5D0
#00A5D0
oklch(67.1% 0.127 224.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #E66E2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.031
- Pumpkin #E17701 ΔE 0.032
- Chocolate #D2691E ΔE 0.042
- Dark Peach #DE7E5D ΔE 0.045
- Bright Orange #FF5B00 ΔE 0.050
- Orange Pant #FB5607 ΔE 0.050
- Dusty Orange #F0833A ΔE 0.051
- Pinkish Orange #FF724C ΔE 0.054
Use #E66E2F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.